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Synthesis and characterization of high‐impact polystyrene using a multifunctional cyclic peroxide as the initiator
Author(s) -
Acuña P.,
Morales G.,
de León R. Díaz
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.30932
Subject(s) - polystyrene , polymer chemistry , grafting , peroxide , materials science , benzoyl peroxide , organic peroxide , selectivity , chemical engineering , ketone , chemistry , composite material , polymer , organic chemistry , polymerization , copolymer , catalysis , engineering
This work deals with the synthesis of high‐impact polystyrene (HIPS) using a novel cyclic multifunctional initiator, the diethyl ketone triperoxide (DEKTP), analyzing its effect on the prepolymerization step and its influence over the HIPS final properties. DEKTP showed a low selectivity toward grafting reactions at any of the concentrations of initiator and temperatures evaluated, and when it was used under a temperature ramp (120–130°C, heating rate = 2°C/min), the synthesis of HIPS was possible with an adequate development of morphology and impact strength (i.e., 67 J/m) depending on DEKTP concentration. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
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